CN113510646B - Spanner suitable for cast iron platform T type groove - Google Patents
Spanner suitable for cast iron platform T type groove Download PDFInfo
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- CN113510646B CN113510646B CN202110866440.5A CN202110866440A CN113510646B CN 113510646 B CN113510646 B CN 113510646B CN 202110866440 A CN202110866440 A CN 202110866440A CN 113510646 B CN113510646 B CN 113510646B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/16—Handles
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Abstract
The utility model provides a spanner suitable for cast iron platform T type groove, is including the work portion that is used for the centre gripping and revolves wrong bolt, the power portion as the power supply and the transmission portion of connecting work portion and power portion, power portion rotates the one end that sets up in transmission portion, work portion sets up the other end in transmission portion, and the work portion internal rotation is provided with the fixture who is used for the holding bolt, and the axis of rotation of power portion is located in the plane parallel with fixture axis of rotation, transmission portion is equipped with reversing transmission mechanism, and reversing transmission mechanism is used for reversing the rotatory power of power portion and drives fixture rotatory. The handle can be operated outside the cast iron platform, so that the conventional outer hexagon bolt can achieve the required tightening torque.
Description
Technical Field
The invention belongs to the technical field of wrenches, and particularly relates to a wrench suitable for a T-shaped groove of a cast iron platform.
Background
The cast iron platform is widely applied to the fields of mechanical processing workpiece measurement inspection and marking, precision equipment assembly, sheet metal part welding and assembling, motor fatigue test foundation, wind power test foundation and the like. Is equipment in the mechanical manufacturing and processing industry. The existing large-scale cast iron platform is mainly a T-shaped groove platform, and when equipment is fixed on the cast iron platform, bolts are needed for connection, but due to the special structure of the T-shaped groove, the traditional outer hexagon bolt cannot achieve the required tightening torque, and the special T-shaped bolt is difficult to purchase on one hand and is 5-10 times as expensive as the outer hexagon bolt on the other hand. In addition, for the traditional spanner, the working direction of the traditional spanner is overlapped with the working surface of the cast iron platform, and the risk of injuring hands exists when the spanner is used.
Disclosure of Invention
The invention aims to provide a T-shaped groove wrench of a cast iron platform, wherein a working part can enter the T-shaped groove to work, and a power part is still arranged outside the cast iron platform, so that the power part can be operated, the working part can be screwed with bolts through a transmission part, the required screwing torque is achieved, and the potential safety hazard of being damaged by the cast iron platform is eliminated.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a spanner suitable for cast iron platform T type groove, is including the work portion that is used for the centre gripping and revolves the wrong bolt, the power portion as the power supply and the transmission portion of connecting work portion and power portion, power portion rotates the one end that sets up in transmission portion, work portion sets up the other end in transmission portion, and the work portion internal rotation is provided with the fixture who is used for the holding bolt, and the axis of rotation of power portion is located a plane parallel with fixture axis of rotation, transmission portion is equipped with reversing transmission mechanism, and reversing transmission mechanism is used for reversing the rotatory power of power portion and drives fixture rotatory.
The rotating axes of the clamping mechanism and the power part are arranged vertically, parallelly or acutely in space.
The working part also comprises a clamping shell for accommodating the clamping mechanism, the clamping mechanism is provided with a fixing hole which can be clamped on the periphery of the bolt head, the upper surface and the lower surface of the clamping shell are respectively provided with a through hole for the bolt to pass through, and the side surface of the clamping mechanism is in transmission connection with the reversing transmission mechanism.
The clamping mechanism is a second fixed helical gear and a first fixed helical gear which are arranged in parallel from top to bottom, the first fixed helical gear and the second fixed helical gear are meshed with a fourth reversing helical gear at the tail end of the reversing transmission mechanism at the same time, and fixing holes matched with the shape of the nuts are formed in the centers of the first fixed helical gear and the second fixed helical gear.
And a plurality of clamping bevel gears surrounding the bolt heads are also arranged in the clamping shell and are engaged with the first fixed bevel gear and the second fixed bevel gear.
The transmission part comprises a reversing shell and a transmission shell, the reversing shell is used for accommodating the reversing transmission mechanism, one end of the transmission shell is fixedly connected with the clamping shell of the working part, and the other end of the transmission shell is fixedly connected with the reversing shell; the reversing transmission mechanism comprises a first transmission shaft and a second transmission shaft which are vertically arranged, the first transmission shaft is rotatably arranged in the reversing shell and connected with the power part, and the second transmission shaft is rotatably arranged in the transmission shell; the first transmission shaft is provided with a first reversing helical gear and a second reversing helical gear, one end of the second transmission shaft is provided with a third reversing helical gear which is meshed with the first reversing helical gear and the second reversing helical gear at the same time, the other end of the second transmission shaft is in transmission connection with a fourth reversing helical gear in the clamping shell, and the fourth reversing helical gear is meshed with the first fixed helical gear and the second fixed helical gear at the same time.
One end of the second transmission shaft, which is close to the working part, is connected with a transmission bearing supported on the clamping shell, the second transmission shaft is connected with the outer end of an inner shaft of the transmission bearing, and the fourth reversing bevel gear is arranged at the inner end of the inner shaft of the transmission bearing; or the transmission bearing is sleeved on the second transmission shaft, and a fourth reversing helical gear is installed at the shaft end of the second transmission shaft.
The two ends of the first transmission shaft are respectively and rotatably connected with reversing bearings at the two ends of the reversing shell, the handle of the power part is fixedly connected with the first transmission shaft through the reversing bearings, and the handle drives the first transmission shaft to rotate.
The inner sides of two shaft ends of the reversing shell are respectively provided with a ratchet bearing, the inner end surface of the inner ring of the ratchet bearing is in transmission connection with the end surface of the adjacent reversing helical gear through a connecting ring, and the central spindle of the ratchet bearing is in transmission connection with the handle of the power part through the reversing bearing arranged at the shaft end of the reversing shell.
The ratchet bearing comprises a ratchet bearing inner ring, a ratchet bearing outer ring, a ratchet spring and a ratchet pawl, wherein the ratchet bearing inner ring is arranged between the ratchet bearing inner ring and the ratchet bearing outer ring, the ratchet bearing inner ring is annular, gear teeth are arranged on the inner circular surface of the ratchet bearing inner ring, the ratchet spring is perpendicular to a mandrel and is arranged on the mandrel of the ratchet bearing, and the end of the ratchet spring is connected with the pawl matched with the gear teeth.
The invention has the beneficial effects that: when the novel screw tightening device is used, the working part can enter the T-shaped groove to clamp the bolt, the handle of the power part is still positioned outside the cast iron platform, and the transmission part can realize the reversing transmission of power from the handle to the clamping mechanism, so that when the bolt needs to be screwed, the handle can be operated outside the cast iron platform, and the conventional outer hexagonal bolt can achieve the required tightening torque.
Compared with the traditional spanner, the handle of the power part is arranged outside the cast iron platform, and the movable track of the handle and the rotating plane of the clamping mechanism of the working part of the spanner are not in the same plane, so that the cast iron platform can be avoided when the handle rotates, and the potential safety hazard that workers are damaged by the cast iron platform is eliminated.
The ratchet wheel bearing is adopted in the power part, so that the rotating range of the handle can be reduced, the operation safety of the wrench is further improved, and when the bolt is screwed, an inner shaft of the ratchet wheel bearing idles when a set value is reached, so that the nut cannot be damaged; the function of automatically adjusting the tightening torque is achieved, the nut is effectively prevented from being damaged when the torque is too large, the ratchet wrench has the function of a ratchet wrench, the time-consuming problem during screwing is avoided, and the working efficiency is further improved.
The invention can adjust the working position of the handle by adjusting the position of the reversing shell relative to the transmission shell according to the actual situation so as to realize the diversity of the use scene and meet the reasonable use of special occasions.
Drawings
FIG. 1 is an isometric view of the invention in example 1;
FIG. 2 is a front view of the present invention in example 1;
FIG. 3 is a top view of the present invention in example 1;
FIG. 4 is a left side view of the present invention in embodiment 1;
FIG. 5 is a longitudinal cross-sectional view of the invention in the view of FIG. 2;
FIG. 6 is a transverse cross-sectional view of the present invention from the view of FIG. 2;
FIG. 7 is a transverse cross-sectional view of the ratchet bearing of the present invention;
FIG. 8 is an isometric view of the invention in example 2;
FIG. 9 is a front view of the present invention in example 2;
FIG. 10 is a top view of the present invention in example 2;
FIG. 11 is a left side view of the present invention in example 2;
the labels in the figure are: 1. a handle, 2, a reversing shell, 3, a third reversing bevel gear, 4, a second transmission shaft, 5, a transmission bearing inner shaft, 6, a transmission bearing outer shaft, 7, a transmission bearing steel ball, 8, a clamping shell, 9, a first fixed bevel gear, 10, a first support bearing outer ring, 11, a first support bearing steel ball, 12, a first support bearing inner shaft, 13, a first clamping bevel gear, 14, a second fixed bevel gear, 15, a first reversing bearing outer ring, 16, a first reversing bearing steel ball, 17, a first reversing bearing inner ring, 18, a first ratchet bearing outer ring, 19, a first ratchet bearing steel ball, 20, a first connecting ring, 21, a first reversing bevel gear, 22, a second reversing bevel gear, 23, a second reversing bearing outer ring, 24, second reversing bearing steel balls, 25, second reversing bearing inner rings, 26, second connecting rings, 27, second ratchet bearing inner rings, 28, second ratchet bearing steel balls, 29, second ratchet bearing outer rings, 30, first transmission shafts, 31, second support bearing outer rings, 32, second support bearing steel balls, 33, second support bearing inner shafts, 34, second clamping bevel gears, 35, third support bearing outer rings, 36, third support bearing steel balls, 37, third support bearing inner shafts, 38, third clamping bevel gears, 39, fourth reversing bevel gears, 40, ratchet springs, 41, pawls, 42, ratchet bearing inner rings, 43, ratchet bearing outer rings, 44 and mandrels.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, but the invention is not limited thereto.
Referring to the attached drawings 1 and 8, the wrench suitable for the T-shaped groove of the cast iron platform comprises a working part I, a transmission part II and a power part III, wherein the working part I is used for extending into the T-shaped groove to clamp and screwing a bolt in the T-shaped groove under the driving of the power part III and the transmission part II; the power part III is mainly used for providing power for the working part I, and when the power part III is used, the power part III is positioned outside the T-shaped groove, and the moving range of the power part III leaves the cast iron platform so as to prevent workers from being damaged by the platform; the transmission part II can structurally connect the power part III and the working part I, and transmits the power of the power part III to the working part I through the reversing transmission mechanism to drive corresponding parts in the working part I to screw bolts.
Specifically, III rotations in power portion set up the one end at transmission portion II, I settings in the other end of transmission portion II in work portion, I internal rotations in work portion are provided with the fixture who is used for the centre gripping bolt, and the axis of rotation of III in power portion is located a plane parallel with fixture axis of rotation.
Further, the rotating axes of the clamping mechanism and the power part are arranged vertically, parallelly or acutely in space.
Example 1: in this embodiment, the rotation axis of the clamping mechanism and the rotation axis of the power portion are perpendicular in space, that is, when the clamping mechanism screws the bolt, the rotation axis of the clamping mechanism is a vertical axis and perpendicular to the surface of the cast iron platform, and the rotation axis of the power portion is horizontal and parallel to the surface of the cast iron platform.
Referring to fig. 2-7, in the wrench structure of this embodiment, the working portion is provided with a hollow clamping housing 8 for accommodating the clamping mechanism, and the upper and lower end surfaces of the clamping housing 8 are respectively provided with through holes for bolts to pass through. The clamping mechanism comprises a second fixed helical gear 14 positioned at the upper end of the clamping shell 8 and a first fixed helical gear 9 positioned at the lower end of the clamping shell 8, fixing holes used for being clamped on the periphery of a bolt head are formed in the centers of the second fixed helical gear 14 and the first fixed helical gear 9, and for an outer hexagonal bolt, the fixing holes are inner hexagonal holes matched with the outer hexagonal bolt.
The first fixed bevel gear 9 and the second fixed bevel gear 14 are simultaneously meshed with a fourth reversing bevel gear 39 at the tail end of the reversing transmission mechanism, a plurality of clamping bevel gears surrounding the bolt are further arranged in the clamping shell 8, and the plurality of clamping bevel gears are meshed with the first fixed bevel gear 9 and the second fixed bevel gear 14.
As shown in fig. 5 and 6, the clamping helical gears preferably include a first clamping helical gear 13, a second clamping helical gear 34 and a third clamping helical gear 38, the first clamping helical gear 13, the second clamping helical gear 34, the third clamping helical gear 38 and a fourth reversing helical gear 39 are uniformly arranged around the central hole of the clamping housing 8, namely around the bolt, and the first clamping helical gear 13, the second clamping helical gear 34, the third clamping helical gear 38 and the fourth reversing helical gear 39 are positioned between the first fixed helical gear 9 and the second fixed helical gear 14 and are simultaneously meshed with the first fixed helical gear 9 and the second fixed helical gear 14, so that the first clamping helical gear 9 and the second fixed helical gear 14 can be supported, the synchronism and stability of the rotation of the first fixed helical gear 9 and the second fixed helical gear 14 can be improved, and the bolt can be conveniently tightened.
As shown in fig. 5, the first clamping helical gear 13 is mounted on the first supporting bearing, the first supporting bearing comprises a first supporting bearing outer ring 10, a first supporting bearing inner shaft 12 and first supporting bearing steel balls 11, the first supporting bearing outer ring 10 is fixed in the mounting hole of the side wall of the clamping shell 8, the first supporting bearing inner shaft 12 is rotatably arranged in the inner hole of the first supporting bearing outer ring 10 through the first supporting bearing steel balls 11, and the first clamping helical gear 13 is mounted on the inner side shaft end of the first supporting bearing inner shaft 12.
As shown in fig. 6, the second clamping helical gear 34 is mounted on a second supporting bearing, the second supporting bearing comprises a second supporting bearing outer ring 31, a second supporting bearing inner shaft 33 and second supporting bearing steel balls 32, the second supporting bearing outer ring 31 is fixed in a mounting hole on the side wall of the clamping shell 8, the second supporting bearing inner shaft 33 is rotatably arranged in an inner hole of the second supporting bearing outer ring 31 through the second supporting bearing steel balls 32, and the second clamping helical gear 34 is mounted on the inner shaft end of the second supporting bearing inner shaft 33.
As shown in fig. 6, the third clamping helical gear 38 is mounted on a third supporting bearing, the third supporting bearing comprises a third supporting bearing outer ring 35, a third supporting bearing inner shaft 37 and a third supporting bearing steel ball 36, the third supporting bearing outer ring 35 is fixed in a mounting hole on the side wall of the clamping shell 8, the third supporting bearing inner shaft 37 is rotatably arranged in an inner hole of the third supporting bearing outer ring 35 through the third supporting bearing steel ball 36, and the third clamping helical gear 38 is mounted on the inner shaft end of the third supporting bearing inner shaft 37.
As for the transmission part, as shown in fig. 5 and 6, the transmission part includes a reversing shell 2 for accommodating the reversing transmission mechanism and a transmission shell, one end of the transmission shell is fixedly connected with a clamping shell 8 of the working part, and the other end of the transmission shell is fixedly connected with the reversing shell 2; the reversing transmission mechanism comprises a first transmission shaft 30 and a second transmission shaft 4 which are vertically arranged, the first transmission shaft 30 is rotatably arranged in the reversing shell 2 and connected with the power part, and the second transmission shaft 4 is rotatably arranged in the transmission shell; the first transmission shaft 30 is provided with a first reversing bevel gear 21 and a second reversing bevel gear 22, one end of the second transmission shaft 4 is provided with a third reversing bevel gear 3 which is meshed with the first reversing bevel gear 21 and the second reversing bevel gear 22 at the same time, the other end of the second transmission shaft 4 is in transmission connection with a fourth reversing bevel gear 39 in the clamping shell 8, and the fourth reversing bevel gear 39 is meshed with the first fixed bevel gear 9 and the second fixed bevel gear 14 at the same time.
The installation of the fourth reverse helical gear 39 is similar to that of the clamping helical gear, a transmission bearing needs to be installed on the clamping shell 8, an outer shaft 6 of the transmission bearing is fixed on the clamping shell, when an inner shaft 5 of the transmission bearing is a solid shaft, the second transmission shaft 4 is connected with the outer end of the inner shaft 5 of the transmission bearing, and the fourth reverse helical gear 39 is installed at the inner end of the inner shaft 5 of the transmission bearing; when the transmission bearing inner shaft 5 is an annular shaft, the transmission bearing inner shaft 5 is directly sleeved on the second transmission shaft 4, and the shaft end of the second transmission shaft 4 is provided with the fourth reversing bevel gear 39.
The transmission bearing and each support bearing are tapered roller bearings.
With reference to fig. 6, the first and second reversing bearings are respectively disposed at two axial ends of the reversing housing 2, the first reversing bearing mainly comprises a first reversing bearing outer ring 15, first reversing bearing steel balls 16 and a first reversing bearing inner ring 17, the second reversing bearing mainly comprises a second reversing bearing outer ring 23, second reversing bearing steel balls 24 and a second reversing bearing inner ring 25, and the first and second reversing bearing outer rings 15 and 23 are respectively fixed at two shaft ends of the reversing housing 2.
The two ends of the first transmission shaft 30 are respectively connected with the first reversing bearing and the second reversing bearing in a rotating mode, the handle 1 of the power portion is fixedly connected with the first transmission shaft 30 through the reversing bearings, and the handle 1 drives the first transmission shaft 30 to rotate.
Preferably, a first ratchet bearing is coaxially arranged on the inner side of the first reversing bearing, and the inner end surface of the inner ring of the first ratchet bearing is in transmission connection with the end surface of the first reversing helical gear 21 through a first connecting ring 20; and a second ratchet bearing is coaxially arranged on the inner side of the second reversing bearing, and the inner end surface of the second ratchet bearing inner ring 27 and the end surface of the second reversing helical gear 22 are in transmission connection through a second connecting ring 26. The function of a ratchet wrench can be realized by arranging the two ratchet bearings, and the working efficiency is further improved.
The first and second ratchet bearings have the same structure, and fig. 7 shows the ratchet bearing with the structure. In fig. 7, a rolling element is installed between the inner race 42 of the ratchet bearing and the outer race 43 of the ratchet bearing, the inner race 42 of the ratchet bearing is ring-shaped, the inner circular surface of the inner race is provided with teeth, the mandrel 44 of the ratchet bearing is provided with two ratchet springs 40 perpendicular to the mandrel 44, the inner ends of the ratchet springs 40 are fixed in the holes of the mandrel 44, the outer ends of the ratchet springs are arranged in the guide grooves on the side surface of the mandrel 44, and the outer ends of the ratchet springs 40 are connected with pawls 41 engaged with the teeth. The mandrel 44 is fixedly connected with the inner ring of the adjacent reversing bearing, and the inner ring of the reversing bearing is fixedly connected with the end part of the handle. As shown in fig. 7, when the rotating handle drives the spindle 44 to rotate counterclockwise, the pawl 41 is inserted into the tooth slot of the inner race 42 of the ratchet bearing, and pushes the inner race 42 of the ratchet bearing to rotate through an angle, and the first reverse helical gear 21 and the second reverse helical gear 22 are driven to rotate by the transmission of the connecting ring, and the first fixed helical gear 9 and the second fixed helical gear 14 are screwed with the clamped bolt by the reverse transmission; when the handle is turned to drive the spindle 44 to rotate clockwise, the ratchet spring 40 is pressed by the tooth backs of the teeth to retract, so that the pawl 41 slides over the tooth backs of the teeth, the ratchet bearing inner ring 42 cannot be driven to rotate, and the first fixed helical gear 9 and the second fixed helical gear 14 cannot be driven to rotate.
When the invention is implemented, when the bolt is screwed to reach the set torque, the ratchet spring is extruded and retracted, the mandrel idles, thereby avoiding the damage to the bolt, further increasing the safety and prolonging the service life of the invention.
In this embodiment, the handle 1 of the power section has a C-shaped connecting end, and two ends of the C-shaped connecting end are respectively fixed to the first reversing bearing inner ring 17 and the second reversing bearing inner ring 25.
This embodiment is when using, and the handle is located the side in T type groove, and the second transmission shaft has certain length, can be so that the home range of handle avoids the cast iron platform, and then improves the security that the spanner used.
Example 2: in the embodiment shown in fig. 8-11, the rotation axis of the clamping mechanism and the rotation axis of the power part are parallel in space, that is, when the clamping mechanism screws the bolt, the rotation axis of the clamping mechanism is a vertical axis and is perpendicular to the surface of the cast iron platform, and the rotation axis of the power part is also perpendicular to the surface of the cast iron platform. However, due to the arrangement of the second transmission shaft, the rotation axis of the power part is away from the cast iron platform.
At the moment, the handle 1 can be set to be L-shaped, one end of the handle is connected with the reversing bearing inner ring at one end of the reversing shell, and the other end of the handle is used as a handle part, so that the handle part is higher than the surface of the cast iron platform, the cast iron platform can be avoided when the handle works, and the use safety of the wrench is improved.
The axis of the reversing shell is parallel to the axis of the clamping shell in the embodiment, and other structures are the same as the arrangement mode of the embodiment 1.
In both embodiments, the two fixed bevel gears can be replaced according to the specification of the bolt, so that the fixing hole on the fixed bevel gear can adapt to the specification of the bolt.
Besides the two embodiments, the reversing shell can be obliquely arranged, namely, an included angle formed by the rotating axis of the clamping mechanism and the rotating axis of the power part is an acute angle in space, and the length of the second transmission shaft is adjusted according to actual conditions, so that the cast iron platform can be avoided from being safely operated.
The above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and it should be understood by those skilled in the art that the modifications and equivalents of the embodiments of the present invention can be made with reference to the above embodiments, and any modifications and equivalents without departing from the spirit and scope of the present invention are within the scope of the claims of the appended patent application.
Claims (6)
1. The utility model provides a spanner suitable for cast iron platform T type groove, is including the work portion that is used for the centre gripping and revolves the revolving bolt, the power portion as the power supply and the transmission portion of connecting work portion and power portion, its characterized in that: the power part is rotatably arranged at one end of the transmission part, the working part is arranged at the other end of the transmission part, a clamping mechanism for clamping a bolt is rotatably arranged in the working part, the rotating axis of the power part is positioned in a plane parallel to the rotating axis of the clamping mechanism, the transmission part is provided with a reversing transmission mechanism, and the reversing transmission mechanism is used for reversing the rotating power of the power part and driving the clamping mechanism to rotate;
the working part also comprises a clamping shell for accommodating the clamping mechanism, the clamping mechanism is provided with a fixing hole which can be clamped on the periphery of the bolt head, the upper surface and the lower surface of the clamping shell are respectively provided with a through hole for the bolt to pass through, and the side surface of the clamping mechanism is in transmission connection with the reversing transmission mechanism;
the clamping mechanism is a second fixed helical gear and a first fixed helical gear which are arranged in parallel up and down, the first fixed helical gear and the second fixed helical gear are simultaneously meshed with a fourth reversing helical gear at the tail end of the reversing transmission mechanism, and fixing holes matched with the appearance of the nuts are formed in the centers of the first fixed helical gear and the second fixed helical gear;
a plurality of clamping bevel gears surrounding the bolt heads are further arranged in the clamping shell and are meshed with the first fixed bevel gear and the second fixed bevel gear;
the transmission part comprises a reversing shell and a transmission shell, the reversing shell is used for accommodating the reversing transmission mechanism, one end of the transmission shell is fixedly connected with the clamping shell of the working part, and the other end of the transmission shell is fixedly connected with the reversing shell; the reversing transmission mechanism comprises a first transmission shaft and a second transmission shaft which are vertically arranged, the first transmission shaft is rotatably arranged in the reversing shell and connected with the power part, and the second transmission shaft is rotatably arranged in the transmission shell; the first transmission shaft is provided with a first reversing helical gear and a second reversing helical gear, one end of the second transmission shaft is provided with a third reversing helical gear which is meshed with the first reversing helical gear and the second reversing helical gear at the same time, the other end of the second transmission shaft is in transmission connection with a fourth reversing helical gear in the clamping shell, and the fourth reversing helical gear is meshed with the first fixed helical gear and the second fixed helical gear at the same time.
2. The wrench for the T-shaped groove of the cast iron platform as claimed in claim 1, wherein: the rotating axes of the clamping mechanism and the power part are arranged vertically, parallelly or in an acute angle in space.
3. The wrench for the T-shaped groove of the cast iron platform as claimed in claim 1, wherein: one end of the second transmission shaft, which is close to the working part, is connected with a transmission bearing supported on the clamping shell, the second transmission shaft is connected with the outer end of an inner shaft of the transmission bearing, and the fourth reversing bevel gear is arranged at the inner end of the inner shaft of the transmission bearing; or the transmission bearing is sleeved on the second transmission shaft, and a fourth reversing helical gear is installed at the shaft end of the second transmission shaft.
4. The wrench for the T-shaped groove of the cast iron platform as claimed in claim 1, wherein: the two ends of the first transmission shaft are respectively and rotatably connected with reversing bearings at the two ends of the reversing shell, the handle of the power part is fixedly connected with the first transmission shaft through the reversing bearings, and the handle drives the first transmission shaft to rotate.
5. The wrench suitable for the T-shaped groove of the cast iron platform as claimed in claim 1, wherein: the inner sides of two shaft ends of the reversing shell are respectively provided with a ratchet bearing, the inner end surface of the inner ring of the ratchet bearing is in transmission connection with the end surface of the adjacent reversing helical gear through a connecting ring, and a mandrel at the center of the ratchet bearing is in transmission connection with a handle of the power part through the reversing bearing arranged at the shaft end of the reversing shell.
6. The wrench for the T-shaped groove of the cast iron platform as claimed in claim 5, wherein: a rolling body is arranged between the inner ring of the ratchet bearing and the outer ring of the ratchet bearing, the inner ring of the ratchet bearing is annular, gear teeth are arranged on the inner circular surface of the inner ring of the ratchet bearing, a ratchet spring perpendicular to a mandrel is arranged on the mandrel of the ratchet bearing, and a pawl matched with the gear teeth is connected to the end portion of the ratchet spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110866440.5A CN113510646B (en) | 2021-07-29 | 2021-07-29 | Spanner suitable for cast iron platform T type groove |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110866440.5A CN113510646B (en) | 2021-07-29 | 2021-07-29 | Spanner suitable for cast iron platform T type groove |
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| CN113510646A CN113510646A (en) | 2021-10-19 |
| CN113510646B true CN113510646B (en) | 2022-11-25 |
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| CN102862137A (en) * | 2011-07-07 | 2013-01-09 | 杭州巨星工具有限公司 | Bi-direction mechanical straightener |
| CN105881441A (en) * | 2015-02-17 | 2016-08-24 | 施耐宝公司 | Remote wrench handle and accessories |
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| CN113510646A (en) | 2021-10-19 |
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